ProMag introduced a new magazine called the Rollermag. Designed for the AR-15 pattern firearms, these new magazines use followers with wheels to provide a very smooth, anti-tilt follower.
It is a new design, and while I do have some concerns, the samples on the show floor were impressive.
Here is what I found…
Perhaps the coolest gadget I’ve seen at the SHOT Show so far this year is the Caldwell AR-15 Mag Charger. Being displayed at the Battenfeld Technologies booth, the Mag Charger is designed to quickly load AR-15 magazines in three easy steps. According to the advertisement, the Mag Charger can load 30-rounds of ammunition from the box to the magazine in only 10 seconds. The system is capable of loading .223, 5.56mm, and .204 ammunition.
The Mag Charger has a spring loaded ammunition tray designed for 50 rounds per load sitting inside of an open-topped plastic housing. Loading 50-round boxes of ammunition that typically sit loosely in a plastic or styrofoam tray is best, but ammunition can be loaded individually if needed.
If you are looking for a unique, lightweight AR-15 style rifle, take a look at the Christensen Arms CA-15 carbines.  No doubt, the firearms are pricey, but they offer some features that are simply not available on other rifles.  If you are looking for a high end, semi-auto carbine that can run a variety of calibers from .204 Ruger to .300 AAC Blackout, you want to learn more about the Christensen Arms CA-15.
Looking to spend a lot of money on an AR-15 trigger that will let you spend a lot of money on ammunition? Â Check out the D-TR double trigger from Elftman Tactical.
The D-TR is a drop-in trigger system for the AR-15 platform that introduces a second trigger guard with a double-hump, really long trigger that can be pressed from both the standard trigger position and the newly added position. Â This essentially lets a shooter slap the triggers in a one-two motion with the pointer and index fingers to throw a lot of rounds downrange in a manner consistent with paintball players.
Cross Machine Tool (CMT) is promoting their newest billet AR-15 lower receiver – the Gen 2 UHP 15. CMT prides itself in using only the highest quality materials, using the latest in CNC technology. The AR receivers are manufactured on a 5 Axis Machining center that machines the receivers in a single set up.
CMT desires to make products that users can be excited to use an any environment they find themselves in. The Gen 2 UHP 15 billet lower receiver has several standard features that have become must-haves for serious AR-15 shooters. This includes a flared mag-well that has a textured front for better handling, and an enlarged trigger guard to assist shooters using gloves.